<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <title>欢迎</title>
    <meta content="width=device-width, initial-scale=1.0" name="viewport">
</head>
<body>
<h1>这是测试用的主页</h1>
<a href="login.html">登 录</a>
<a href="signup.html">注 册</a>
<a href="chat.html">聊 天</a>
</body>
</html>